Tenth Schedule Anti-Defection Law: Merger Exception Tested as Seven Rajya Sabha MPs Face Disqualification Petition
A petition was filed before the Rajya Sabha Chairman seeking disqualification of seven Members of Parliament who quit the party on whose ticket they were elected and subsequently announced a merger with another party.
The seven MPs — including prominent members such as Raghav Chadha — represent exactly two-thirds of the party's ten-member Rajya Sabha legislature party, a threshold they claim satisfies Paragraph 4 of the Tenth Schedule (the merger exception) and therefore shields them from disqualification.
The original party filed the petition contesting the merger's validity, arguing: (a) a constitutional "merger" under Paragraph 4 requires the original political party as a whole to merge, not merely its legislature party wing in one House; (b) the original party continues to exist and function robustly in multiple states, making a "merger" legally untenable; and (c) the decision to merge must be taken by the party organisation itself, not only by its legislators.
The MPs countered that they constitute two-thirds of the legislature party, which is precisely the statutory condition Paragraph 4 prescribes, and that the Tenth Schedule makes no further requirement regarding the continuation of the original party.
The Rajya Sabha Chairman, in his capacity as the presiding authority under Paragraph 6 of the Tenth Schedule, will adjudicate the disqualification petition — a quasi-judicial function that is subject to judicial review by courts under Kihoto Hollohan v. Zachillhu (1992).
Legal commentary has noted a significant constitutional tension: the Tenth Schedule uses the phrase "the original political party merges with another party," which implies an organisational-level event involving the party as a whole — not merely a bloc migration of legislators citing a numerical threshold.
Tenth Schedule: Anti-Defection Law: Constitutional Framework
The Tenth Schedule of the Constitution of India, introduced by the Constitution (Fifty-Second Amendment) Act, 1985, governs disqualification of members of Parliament and state legislatures on grounds of defection.
The seven MPs are invoking the Paragraph 4 merger exception by claiming exactly two-thirds of the Rajya Sabha legislature party (7 out of 10). The petition challenges whether the "merger" requirement can be satisfied when only the legislature party's wing moves and the national party organisation continues independently — a question the Rajya Sabha Chairman must now adjudicate.
The Two-Thirds Merger Threshold: What Paragraph 4 Actually Requires
Paragraph 4(1) of the Tenth Schedule specifies a two-fold requirement for a valid merger:
- Two-thirds of the legislature party members must agree to the merger.
- The merger must be of the original political party with another political party.
Key Details
- The phrase "original political party merges with another political party" in Paragraph 4 has been interpreted to require an organisational merger at the party level — not merely a legislative party bloc claiming a merger.
- If the original party as a national organisation continues to exist and function, the "party merger" element of Paragraph 4 may not be satisfied even if two-thirds of legislators declare a merger.
- Critical arithmetic in this case: The party had 10 Rajya Sabha MPs; 7 = exactly two-thirds (2/3 × 10 = 6.67, rounded to 7 for the statutory two-thirds threshold). The original party argues that fractional calculation means 7 out of 10 does not constitute "not less than two-thirds."
- 91st Amendment (2003) significance: Before this amendment, even a one-third split was protected; now the protection threshold is strictly two-thirds, making genuine mergers (rather than engineered splits) the only safe harbour.
- Difference between "split" and "merger": A split is internal fragmentation; a merger is union with another party. The Tenth Schedule currently only protects the latter.
The legal dispute centres on whether seven Rajya Sabha MPs of a party that remains fully operational in states can validly invoke the "merger" exception — or whether their departure is effectively a defection dressed as a merger, which Paragraph 4 was not designed to protect.
Kihoto Hollohan v. Zachillhu (1992): Judicial Review of Tenth Schedule
The most significant Supreme Court judgment interpreting the Tenth Schedule is Kihoto Hollohan v. Zachillhu (1992), decided by a five-judge Constitution Bench (3:2 majority).
The Rajya Sabha Chairman will adjudicate the petition as a quasi-judicial authority under Paragraph 5/6. Any final order is subject to judicial review, and parties may approach courts after the Chairman's decision on grounds established in Kihoto Hollohan.
Role of Rajya Sabha Chairman vs. Lok Sabha Speaker in Disqualification
Key Details
- Rajya Sabha Chairman: The Vice-President of India is the ex-officio Chairman of Rajya Sabha (Article 64 read with Article 89). Under Paragraph 5 of the Tenth Schedule, the Chairman of Rajya Sabha decides all disqualification questions for Rajya Sabha members.
- Lok Sabha Speaker: Elected by members of Lok Sabha; decides disqualification for Lok Sabha members.
- No appeal within Parliament: There is no appellate mechanism within Parliament; the only recourse after the presiding officer's decision is judicial review before the Supreme Court or High Court.
- Time frame: The Tenth Schedule does not prescribe a time limit within which the presiding officer must decide; this has been a persistent criticism — prolonged inaction can effectively keep disqualified members in office.
- Rajiv Gandhi era context: The anti-defection law was enacted in 1985 during the Rajiv Gandhi government following the infamous "Aaya Ram Gaya Ram" phenomenon of the 1960s–70s (Haryana MLA Gaya Lal's multiple floor-crossings in a single day gave rise to the expression).
The Rajya Sabha Chairman's adjudicatory role in this case will be closely watched; the outcome will clarify whether the "merger" exception can be deployed by a legislature party faction when the parent party organisation remains intact.
- Tenth Schedule inserted by: Constitution (Fifty-Second Amendment) Act, 1985.
- Merger exception (Paragraph 4): Requires two-thirds of the legislature party to agree AND the original political party to merge with another party.
- 91st Amendment Act (2003): Deleted the one-third split exception; only merger (two-thirds) now provides immunity.
- Disqualification authority for Rajya Sabha: Chairman of Rajya Sabha (Vice-President of India).
- Kihoto Hollohan v. Zachillhu (1992): 5-judge bench, 3:2 majority — upheld validity of Tenth Schedule; Speaker/Chairman's decision subject to judicial review post-decision only.
- Nabam Rebia v. Deputy Speaker (2016): Speaker facing removal motion cannot adjudicate disqualification petition.
- Number of MPs involved: 7 out of 10 (claimed two-thirds threshold).
- Two-thirds of 10 = ?: 6.67; the threshold question (is 7 "not less than two-thirds"?) is legally significant.
- Original party position: The party as a whole has not merged; it continues in multiple states — making this a disputed "merger."
- Article 64: Vice-President is ex-officio Chairman of Rajya Sabha.
- Amendment procedure for Tenth Schedule: Requires Special Majority under Article 368.
- "Aaya Ram Gaya Ram" phenomenon: Floor-crossing by Haryana MLA Gaya Lal (1967) — catalyst for anti-defection legislation.
- Types of majority in Parliament: Simple majority (> 50% of members present and voting), Absolute majority (> 50% of total strength), Effective majority (> 50% of total minus vacancies), Special majority (Article 368 — majority of total + 2/3 of present and voting).